Unit 1 Assignment 1 Essay example

973 WordsJan 29th, 20154 Pages

Section 1-1
1. Define modulation.
In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted.
*2. What is carrier frequency?
The frequency generated by an unmodulated radio, radar, carrier communication, or other transmitter, or the average frequency of the emitted wave when modulated by a symmetrical signal. Also known as center frequency; resting frequency. 3. Describe the two reasons that modulation is used for communications trans- missions.
1) Signal integrity 2) Power savings
4. List the three parameters of a high-frequency carrier that may be varied by…show more content…

Noise generated by electronic devices varies greatly, as it can be produced by several different effects. Thermal noise is unavoidable at non-zero temperature, while other types depend mostly on device type or manufacturing quality and semiconductor defects, such as conductance fluctuations, including 1/f noise. 16. Explain the difference between external and internal noise.
Internal Noise is that which a system generates on its own. For example in MicroProcessor, Inductance of lines connecting different gates or coupling capacitance between different lines may produce noise. In some systems, thermal excitation and deexcitation of Electrons may produce Noise. In Most Cases, such Noise is unavoidable. For example, if we are amplifying a signal by normal Amplifier, which has certain internal Noise, and if We make gain large to improve signal to Noise ratio, Noise gain will also increase!!! External Noise on the other hand comes from some external source. For example, in Microprocessor system, ripple voltage from power supply or voltage spikes may produce noise. This noise can often be reduced easily and may even be suppressed.
Section 1-4
23. Calculate the S/N ratio for a receiver output of 4 V signal and 0.48 V noise both as a ratio and in decibel form. (69.44, 18.42 dB)
27. A two-stage amplifier has a 3-dB bandwidth of 150 kHz determined by an LC circuit at its input and operates at 27°C. The

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Unit 1 Assignment
Johnny Navarro Jr.
GB540
Kaplan University
Problem #1: Using either a graph or table (Refer to page 22 for help with graphs and tables) use two goods to construct a production possibilities curve. Clearly explain what a variety of different points on the curve mean. What would make the curve expand or contract? Why is efficiency lost at the extremes, as when substantially more of one good and very little of another is produced?
I am currently self-employed and deal…

Task 1
Processors (CPU)
The processor (CPU) is essentially the brain of a computer system. The role of the CPU is mainly to process everything from basic instructions to complex function. The well known measure of the CPU is clock speed and it is measured in MHz or GHz. The different manufacturers of the CPU are Texas Instruments, Intel Corp, Centaur Technology etc..
Motherboard
A motherboard (mobo) is basically the main circuit board of a computer system. All the different components such…

Nia Scott
November 27, 2012
Unit 5 final assignment
Professor Jimmie Flores
Kaplan University
Q#1) Provide the name of the organization (this must be a real organization and you may use the organization where you currently work; describe the organization’s size and summarize the primary mission of the organization. Don’t simply copy from the organization’s mission statement.
“Always Low Prices” when an individual read or hear that slogan the name of the store is Wal Mart. Wal Mart is the number…

Unit 8 Assignment 1
20. Because the magnetic force which deflects the electrons is defined by F = q * v x B
(v x B is the cross product of the 2 vectors), so:
The force vector would always be perpendicular to both the v and B vectors.
Since the force is perpendicular to the electron's velocity vector, and thus the path of the electrons, the work done by the field on the electrons is 0, because W = F*d*cos(theta), and theta=90 degrees, therefore cos(theta)=0, and W=0
If W = 0 then…

Baldeo Persaud
NT1210
Unit 9 Assignment 1
Key Terms:
The Internet- The global network formed by interconnecting most of the networks on the planet, with each home and company network connecting to an Internet service provider (ISP), which in turn connects to other ISPs.
Internet edge- The part of the Internet between an ISP and the ISP customer, whether the customer is a company or organization with a large private TCP/IP network, or whether the customer is a single individual.
point of presence-…

Unit 4
Assignment 1
Chosen business: Tesco
Task 1 (P1)
There are different types of information that Tesco use these are:
- Verbal information: This is spoken information it could come from the customer, it could also come from Tesco if they let any promotions over the tannoy.
- Written information: This is information that is written in a document, Tesco uses this type of information in its leaflets, receipts and collects this information from customers through comment cards etc.
- Onscreen information:…

Unit 1 Assignment 1: Voice vs. Data
Cell phones: A mobile phone (also known as a cellular phone, cell phone, and a hand phone) is a device that can make and receive telephone calls over a radio link while moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network. By contrast, a cordless telephone is used only within the short range of a single, private base station.
In addition to telephony…

1. Which of the following is true about 1 bit?
c. Represents one binary digit
2. Which of the following terms means approximately 106 bytes?
b. Megabyte
3. Which answer lists the correct number of bits associated with each term?
c. 64 bits per quadruple word
4. Which of the following answers are true about random-access memory (RAM) as it is normally
used inside a personal computer? (Choose two answers.)
a. Used for short-term memory
e. Is installed onto the motherboard
5. This…

Executive Summary on Veteran’s Affairs (VA) and Loss of Private Information
IS3350 Unit 2 Assignment 1: Executive Summary on Veteran’s Affairs (VA) and Loss of Private Information
Background
On 3 May 2006, a Department of Veterans Affairs (VA) laptop was stolen from a VA data analyst’s home in Montgomery County, Maryland. In addition to the laptop, a personal external hard drive was stolen. The external hard drive contained the personal data (names, social security numbers, dates of birth…